Examine source code of Cuore Rossoazzurro

{
  "theme": {
    "images": {
      "theme_frame": "lultimobannerfirefoxsopra.jpg"
    },
    "colors": {
      "frame": "#fc0a0a",
      "tab_background_text": "#fcf808"
    }
  },
  "version": "2.0",
  "name": "Cuore Rossoazzurro",
  "manifest_version": 2,
  "description": "Cuore Rossoazzurro"
}